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    1.
    发明专利
    未知

    公开(公告)号：ES2151296T3

    公开(公告)日：2000-12-16

    申请号：ES97952902

    申请日：1997-12-09

    Applicant: BASF AG

    Inventor： AUHORN WERNER ,  MONCH DIETMAR ,  DYLLICK-BRENZINGER RAINER ,  SCHOLZ RAINER ,  BLUM RAINER ,  MEIXNER HUBERT

    IPC: D21H23/04 ,  D21F1/08 ,  D21H17/37 ,  D21H17/54 ,  D21H21/10 ,  D21H23/24

    Abstract: PCT No. PCT/EP97/06857 Sec. 371 Date Jan. 27, 1999 Sec. 102(e) Date Jan. 27, 1999 PCT Filed Dec. 9, 1997 PCT Pub. No. WO98/29603 PCT Pub. Date Jul. 9, 1998Paper is produced by draining a paper stock containing process chemicals on a paper machine, a main stream of the paper stock and a dilution stream which consists of white water, contains at least 5% by weight of the process chemicals and amounts to 5-35% by volume of the total head box feed being fed via a head box to the paper machine wire. The papers thus produced have an excellent formation profile and an outstanding ash distribution.

    3.
    发明专利
    未知

    公开(公告)号：NO172402B

    公开(公告)日：1993-04-05

    申请号：NO883274

    申请日：1988-07-22

    Applicant: BASF AG

    Inventor： STANGE ANDREAS ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  WEBERNDOERFER VOLKMAR ,  KROENER MICHAEL ,  HARTMAN HEINRICH

    IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

    Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.

    5.
    发明专利
    未知

    公开(公告)号：DE4105919A1

    公开(公告)日：1992-08-27

    申请号：DE4105919

    申请日：1991-02-26

    Applicant: BASF AG

    Inventor： PFOHL SIGBERG DR ,  AUHORN WERNER ,  STANGE ANDREAS DR ,  LINHART FRIEDRICH DR

    IPC: D21H17/37 ,  D21H17/56 ,  D21H17/69

    Abstract: Aqueous sludges of finely-ground fillers that are at least partially coated with polymers are produced by successively adding to an aqueous filler sludge 0.1 to 5 wt % of a cationic paper consolidating agent, 0.1 to 5 wt % of a non-ionic and/or anionic paper consolidating and/or sizing agent, with respect to the weight of fillers. The cationic consolidating agent is used in such an amount, with respect to the anionic consolidating and/or sizing agents, that the finely-ground fillers have a cationic charge. Also disclosed is the use of the thus obtained aqueous sludges of finely-ground fillers for producing filler-containing paper, cardboard and/or paperboard by adding the aqueous sludges to a paper pulp and by draining the paper pulp.

    9.
    发明专利
    未知

    公开(公告)号：DE3730887A1

    公开(公告)日：1989-03-23

    申请号：DE3730887

    申请日：1987-09-15

    Applicant: BASF AG

    Inventor： AUHORN WERNER ,  DEGEN HANS-JUERGEN DR ,  HOEHR LOTHAR DR ,  RIEBELING ULRICH

    IPC: D21H19/36 ,  D21H19/44 ,  D21H19/54 ,  D21H19/58

    Abstract: Process for improving the printability of paper by a single- or two-sided application of aqueous coating materials consisting of a) 100 parts by weight of a finely dispersed pigment b) 5 to 70 parts by weight (based on solids) of a cationic aqueous polymer dispersion of a paper size and c) 0.01 to 10 parts by weight of a surfactant which interferes with the formation of the surface sizing and/or of a polymeric dispersant to the surface of the paper in a quantity of 0.5 to 4 g/m and drying the coated paper.

    10.
    发明专利
    未知

    公开(公告)号：DE3724646A1

    公开(公告)日：1989-02-02

    申请号：DE3724646

    申请日：1987-07-25

    Applicant: BASF AG

    Inventor： STANGE ANDREAS DR ,  DEGEN HANS-JUERGEN DR ,  AUHORN WERNER ,  WEBERNDOERFER VOLKMAR DR ,  KROENER MICHAEL DR ,  HARTMANN HEINRICH DR

    IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

    Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.

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